Heavy metal detection device
By generating optical signals through high-voltage discharge of liquids, the problem of cumbersome sample pretreatment in existing technologies has been solved, and efficient heavy metal detection has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing heavy metal detection equipment has high requirements for sample pretreatment, is cumbersome to operate, and has low detection efficiency.
A heavy metal detection device was designed. It generates light signals by high-voltage discharge to the liquid being tested through conductive parts one and two, and directly analyzes the types of heavy metals in the liquid without sample pretreatment.
It enables the direct detection of heavy metals in liquids without sample pretreatment, improving detection efficiency and simplifying the operation process.
Smart Images
Figure CN224109342U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the heavy metal detection field, concretely relates to a heavy metal detection device. BACKGROUND
[0002] Heavy metal pollution is one of the important factors affecting water quality safety. For example, once lead, mercury, cadmium and other heavy metals enter the water body, they are difficult to degrade through natural processes and can pose a threat to human health. Therefore, it is important to regularly detect the types of heavy metals in water. However, some existing detection equipment has high requirements for sample pretreatment, is cumbersome to operate, and has low detection efficiency.
[0003] Therefore, how to avoid the sample pretreatment of water quality heavy metal detection, i.e., the pretreatment is too cumbersome, is a technical problem that needs to be solved by those skilled in the art.
[0004] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application, and therefore, the above description is not considered to constitute information of the prior art. CONTENT OF THE UTILITY MODEL
[0005] The present disclosure provides at least a heavy metal detection device.
[0006] In a first aspect, the present disclosure provides a heavy metal detection device, comprising:
[0007] a housing;
[0008] a conductive part one on the housing, connected with a first power supply terminal;
[0009] a conductive part two on the housing, connected with a second power supply terminal; and
[0010] a liquid inlet part configured to deliver the measured liquid between the conductive part one and the conductive part two; and
[0011] a receiving assembly provided with a plurality of receiving sources configured to receive the light generated by the discharge of the measured liquid;
[0012] wherein the conductive part one and the conductive part two discharge high voltage to the measured liquid to generate light which is received and analyzed by the receiving assembly.
[0013] In an optional embodiment, the conductive part one includes a lower end cap provided at the lower end of the housing, a lower cap provided below the lower end cap, and a bracket provided above the lower end cap, the bracket being provided with a graphite rod, wherein
[0014] The graphite rod is connected with the first power supply terminal by a wire passing through the bracket, the lower end cap and the lower cap in sequence.
[0015] In an alternative embodiment, the liquid inlet part comprises a capillary tube, one end of which extends through the lower end cover and to the top of the graphite rod, and the other end extends into the lower cap.
[0016] In an alternative embodiment, a notch is formed in the lower cap to facilitate insertion of the wire and capillary tube into the lower cap.
[0017] In an alternative embodiment, the lower end cover is further provided with a drain valve on one side.
[0018] In an alternative embodiment, a fan is provided on one side of the housing, and the fan is arranged to face the direction of the drain valve.
[0019] In an alternative embodiment, the second electrically conductive part comprises an upper end cover arranged at the upper end of the housing, an upper cap arranged above the upper end cover, and an adjusting nut arranged in the upper cap, and a tungsten rod is arranged in the adjusting nut, wherein,
[0020] The tungsten rod is connected to the second power terminal by a wire.
[0021] In an alternative embodiment, a threaded hole is formed in the upper end cover, and the adjusting nut is arranged in the threaded hole in a rotatable manner.
[0022] In an alternative embodiment, one end of the housing is provided with a mounting cavity suitable for placing a desiccant, and the position of the mounting cavity corresponds to the gap between the first electrically conductive part and the second electrically conductive part.
[0023] In an alternative embodiment, the receiving assembly comprises a frame arranged on the housing and a lens arranged on the frame in a sliding manner, and the receiving source comprises an optical fiber arranged on the housing, wherein,
[0024] The position of the optical fiber corresponds to the position of the lens.
[0025] The heavy metal detection device of the utility model need not pretreat the sample, can directly input the liquid to be detected into the housing through the liquid inlet part, and high-voltage discharge is carried out on the liquid to be detected through the first electrically conductive part and the second electrically conductive part, so as to make the metal ions in the measured liquid emit light with a specific energy spectrum, the emitted light is transmitted to the Raman spectrometer by the receiving assembly, and it is analyzed that which kind of heavy metal is contained in the measured liquid.
[0026] The other features and advantages of the present application will be described in the following description, and become apparent from the description, or can be learned from the practice of the application. The objectives and other advantages of the present application can be achieved and attained by the structure particularly pointed out in the description, the claims, and the accompanying drawings.
[0027] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0029] Figure 1 A cross-sectional view of a heavy metal detection device according to an embodiment of the present disclosure.
[0030] In the drawings:
[0031] 100, housing; 110, fan; 200, conductive part one; 210, lower end cover; 220, lower cap; 230, bracket; 240, graphite rod; 250, wire; 300, conductive part two; 310, upper end cover; 311, threaded hole; 320, upper cap; 330, adjusting nut; 340, tungsten rod; 400, receiving assembly; 600, capillary; 700, drain valve; 800, mounting cavity; 810, drying agent; 900, receiving assembly; 910, frame; 920, lens; 930, optical fiber. DETAILED DESCRIPTION
[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0033] In this document, when it is mentioned that a first component is located on a second component, it can mean that the first component can be directly formed on the second component, or a third component can be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components can be exaggerated or reduced.
[0034] In this document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to" or "coupled to" another element or layer, it can be directly on, engaged, connected, attached or coupled to the other element or layer, or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0035] In this document, example implementations of the disclosure will be described in greater detail with reference to the attached drawings. As used herein, expressions such as "at least one of", when preceding a list of two or more members, modify the entire list of members. For example, the expression "at least one of a, b, and c" should be understood as including only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0036] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular articles "a", "an", and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "including", and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order
[0037] As used herein, the phrases "in an embodiment", "according to an embodiment", "in some embodiments", and the like, generally mean the fact that a particular feature, structure, or characteristic described in such a phrase can be included in at least one embodiment of the disclosure. Thus, the particular feature, structure, or characteristic can be included in more than one embodiment of the disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example", "exemplary", and the like, are used as "by way of example, instance, or illustration. Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Rather, the use of the terms "example", "exemplary", and the like, is intended to present concepts in a concrete fashion.
[0038] The research shows that the prior art has the following disadvantages: some existing detection devices have high requirements for sample pretreatment, need to be digested or extracted with acid, are complicated to operate, and have low detection efficiency.
[0039] Based on the above research, the embodiment of the present disclosure provides a heavy metal detection device.
[0040] The above-mentioned defects are the results of the inventors' practice and careful research, and therefore, the discovery process of the above-mentioned problems and the solutions proposed by the present disclosure to solve the above-mentioned problems should be the contributions of the inventors to the present disclosure.
[0041] It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0042] Some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.
[0043] Referring to Figure 1 , the embodiment of the present disclosure provides a heavy metal detection device, which comprises a shell 100; the shell 100 is provided with a conductive part one 200 connected with a first power supply terminal; and a conductive part two 300 located on the shell 100 is connected with a second power supply terminal.
[0044] Continuing to refer to Figure 1 , the shell 100 is further provided with a liquid inlet part configured to deliver the measured liquid to between the conductive part one 200 and the conductive part two 300; wherein the conductive part one 200 and the conductive part two 300 discharge high voltage to the detected liquid to generate light which is received and analyzed by the receiving assembly 900.
[0045] Further, the receiving assembly 900 provided in the shell 100 is provided with a plurality of receiving sources configured to receive the light generated by the discharge of the measured liquid.
[0046] Further, the light generated by the discharge of the measured liquid is transmitted to the Raman spectrometer by the receiving assembly 900, so as to analyze which types of heavy metals are contained in the measured liquid.
[0047] Continuing to refer to Figure 1In some embodiments, the conductive part one 200 includes a lower end cover 210 arranged at the lower end of the shell 100, a lower cover cap 220 arranged below the lower end cover 210, and a bracket 230 arranged above the lower end cover 210, and a graphite rod 240 is arranged in the bracket 230, wherein the graphite rod 240 is connected with the first power terminal through a lead wire 250 which passes through the bracket 230, the lower end cover 210 and the lower cover cap 220 in sequence.
[0048] With reference to the foregoing Figure 1 In some embodiments, the liquid inlet part includes a capillary tube 600, one end of the capillary tube 600 extends to the top of the graphite rod 240 through the lower end cover 210, and the other end extends into the lower cover cap 220.
[0049] Specifically, a notch is arranged on the lower cover cap 220 to facilitate the insertion of the lead wire 250 and the capillary tube 600 into the lower cover cap 220. The capillary tube 600 is adapted to deliver the measured liquid between the conductive part one 200 and the conductive part two 300.
[0050] With reference to the foregoing Figure 1 In some embodiments, the lower end cover 210 is further provided with a drain valve 700 on one side, through which the waste liquid can be recovered.
[0051] With reference to the foregoing Figure 1 In some embodiments, the shell 100 is provided with a fan 110 on one side, and the fan 110 is arranged towards the drain valve 700.
[0052] Specifically, the fan 110 can blow away the water vapor on the inner wall of the shell 100 from the top, preventing it from condensing on the inner side of the pipe wall and affecting the light path.
[0053] With reference to the foregoing Figure 1 In some embodiments, the conductive part two 300 includes an upper end cover 310 arranged at the upper end of the shell 100, an upper cover cap 320 arranged above the upper end cover 310, and an adjusting nut 330 arranged in the upper cover cap 320, and a tungsten rod 340 is arranged in the adjusting nut 330, wherein the tungsten rod 340 is connected with the second power terminal through the lead wire 250.
[0054] With reference to the foregoing Figure 1 In some embodiments, a threaded hole 311 is arranged on the upper end cover 310, and the adjusting nut 330 is arranged in the threaded hole 311.
[0055] Specifically, the height of the tungsten rod 340 can be adjusted by rotating the adjusting nut 330, so as to adjust the gap size between the conductive part one 200 and the conductive part two 300.
[0056] With reference to the foregoing Figure 1In some embodiments, one end of the shell 100 is provided with a mounting cavity 800 suitable for placing the desiccant 810, and the position of the mounting cavity 800 corresponds to the gap between the conductive part one 200 and the conductive part two 300.
[0057] Specifically, the position of the desiccant 810 corresponds to the gap between the conductive part one 200 and the conductive part two 300, which can absorb the water vapor generated by the measured liquid in the gap, and can further prevent the water vapor from condensing, thereby preventing it from affecting the light path.
[0058] Continuing to refer to Figure 1 In some embodiments, the receiving assembly 900 includes a rack 910 provided on the shell 100 and a lens 920 slidingly provided on the rack 910, and the receiving source includes an optical fiber 930 provided on the shell 100, wherein the position of the optical fiber 930 corresponds to the position of the lens 920.
[0059] By corresponding the position of the optical fiber 930 to the position of the lens 920, the optical fiber 930 and the lens 920 are in the same horizontal plane, so that the light entering the optical fiber 930 is maximized, thereby ensuring the accuracy of detection.
[0060] In summary, the heavy metal detection device does not need to pretreat the sample, and can directly input the liquid to be detected into the shell 100 through the capillary 600 of the liquid inlet part, and discharge the liquid to be detected by the conductive part one 200 and the conductive part two 300, so that the metal ions in the measured liquid emit light with a specific energy spectrum, the emitted light is transmitted to the Raman spectrometer by the receiving assembly 900, and it is analyzed that which kind of heavy metal is contained in the measured liquid.
[0061] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0062] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, terms such as "first", "second" and other numerical terms are used in this text, and do not imply order or sequence unless the text is explicitly indicated. Therefore, the above-discussed first element, component, area, layer or section can be referred to as the second element, component, area, layer or section without departing from the teachings of the example embodiments.
[0063] Spatially relative terms, such as "internal", "external", "lower", "under", "bottom", "top", "above", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0064] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing a numerical value, mean a variation of + / - 10% of the value.
[0065] With the above ideal embodiments according to the utility model as the inspiration, through the above description, relevant staff can definitely make various changes and modifications without deviating from the technical thought of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.
Claims
1. A heavy metal detection device, characterized by, The heavy metal detection device comprises a shell (100), a first electrically conductive part (200) connected with a first power terminal, a second electrically conductive part (300) connected with a second power terminal, a liquid inlet part configured to deliver a liquid to be detected between the first electrically conductive part (200) and the second electrically conductive part (300), and a receiving assembly (900) provided with a plurality of receiving sources configured to receive light generated by discharge of the liquid to be detected.
2. The heavy metal detection device according to claim 1, wherein the first electrically conductive part (200) comprises a lower end cover (210) arranged at a lower end of the shell (100), a lower cap (220) arranged below the lower end cover (210), and a bracket (230) arranged above the lower end cover (210), and a graphite rod (240) is arranged in the bracket (230), and the graphite rod (240) is connected with the first power terminal through a wire (250) passing through the bracket (230), the lower end cover (210) and the lower cap (220) in sequence.
3. The heavy metal detection device according to claim 2, wherein the liquid inlet part comprises a capillary tube (600), one end of the capillary tube (600) extending to a top of the graphite rod (240) through the lower end cover (210), and the other end extending into the lower cap (220).
4. The heavy metal detection device according to claim 3, wherein a notch is formed in the lower cap (220) to facilitate insertion of the wire (250) and the capillary tube (600) into the lower cap (220).
5. The heavy metal detection device according to claim 2, wherein a drain valve (700) is arranged on one side of the lower end cover (210).
6. The heavy metal detection device according to claim 5, wherein a fan (110) is arranged on one side of the shell (100) and faces the drain valve (700).
7. The heavy metal detection device according to claim 2, wherein the second electrically conductive part (300) comprises an upper end cover (310) arranged at an upper end of the shell (100), an upper cap (320) arranged above the upper end cover (310), and an adjusting nut (330) arranged in the upper cap (320), and a tungsten rod (340) is arranged in the adjusting nut (330), and the tungsten rod (340) is connected with the second power terminal through the wire (250).
8. The heavy metal detection device according to claim 7, wherein a threaded hole (311) is formed in the upper end cover (310), and the adjusting nut (330) is arranged in the threaded hole (311) in a rotating manner.
9. The heavy metal detection device according to claim 1, One end of the shell (100) is provided with a mounting cavity (800) suitable for placing a desiccant (810), the position of the mounting cavity (800) corresponds to the gap between the first conductive part (200) and the second conductive part (300).
10. The heavy metal detection device of claim 9, wherein, The receiving assembly (900) comprises a frame (910) provided on the shell (100) and a lens (920) slidingly provided on the frame (910), and the receiving source comprises an optical fiber (930) provided on the shell (100), wherein, The position of the optical fiber (930) corresponds to the position of the lens (920).